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package Plugin::Map;
use strict;
use warnings;
my %config;
my $run_command;
sub configure {
my $self = shift;
my $cmdref = shift;
my $cref = shift;
%config = %$cref;
$run_command = shift;
$cmdref->("map", sub { $self->map(@_); } );
return $self;
}
sub parse_list {
my ($input) = @_;
my @res;
my $i = 0;
# Index of the start of the current item
my $item_i = 0;
# Level of nested lists, 1 being the minimum
my $nest = 1;
# Are we currently lexing inside a string literal?
my $is_string = 0;
return ("Error: expected [", undef) unless substr($input, $i, 1) eq "[";
$i++;
$item_i = $i;
while ($nest != 0 && $i < length($input)) {
my $c = substr($input, $i, 1);
if ($c eq "[") {
$nest++;
} elsif ($c eq "]") {
$nest--;
}
if (($nest == 1 and $c eq ",") || ($nest == 0 and $c eq "]")) {
my $item = substr($input, $item_i, $i - $item_i);
$item =~ s/^\s+|\s+$//g;
push @res, $item;
$item_i = $i+1;
}
$i++;
}
return ("Error: expected ], got end of line", undef) unless $nest == 0;
if ($i != length($input)) {
return ("Error: unexpected item in the bagging area (after ']')", undef);
}
return (undef, @res);
}
sub map {
my ($self, $irc, $logger, $who, $where, $rest, @arguments) = @_;
my ($command, $subjects_raw) = ($rest =~ /^(.+)\s+(\[.*\])$/);
return "Syntax: map command [item1, item2, ...]" unless $command and $subjects_raw;
my ($e, @subjects) = parse_list($subjects_raw);
return $e if $e;
my @results = map { $run_command->("$command $_", $who, $where) } @subjects;
return "[" . (join ", ", @results). "]";
}
1;
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